/u/el_derrotado's posts in /r/askscience

Year:

Only show posts with narrations

In space, two pieces of metal of the same type will "cold weld" if they touch. Why does this happen, and what do space agencies do to avoid or prevent this?

4805 upvotes

Mark as read: Add to a list

What, explicitly, is keeping us from leaving the solar system?

1 upvotes

Mark as read: Add to a list

China has just switched on the EAST reactor and are attempting 360 million degrees. What materials are reactors like this (and ITER to a little lesser degree) made of that they don't just melt entire city blocks when reaching these incredible temperatures?

1 upvotes

Mark as read: Add to a list

Are the effects of lactucarium, the active substance in "wild lettuce", well documented?

1 upvotes

Mark as read: Add to a list

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
In space, two pieces of metal of the same type will "cold weld" if they touch. Why does this happen, and what do space agencies do to avoid or prevent this?	4805
What, explicitly, is keeping us from leaving the solar system?	1
China has just switched on the EAST reactor and are attempting 360 million degrees. What materials are reactors like this (and ITER to a little lesser degree) made of that they don't just melt entire city blocks when reaching these incredible temperatures?	1
Are the effects of lactucarium, the active substance in "wild lettuce", well documented?	1